Laser-driven helium at 780 nm
Department of Applied Mathematics and Theoretical Physics, Queen's University Belfast,
Belfast BT7 1NN, Northern Ireland, UK
Corresponding author: a firstname.lastname@example.org
Published online: 24 April 2003
We briefly review the methods under development at Queen's University Belfast to solve the full-dimensionality time-dependent Schrödinger equation for helium in intense laser fields. We set out the computational challenges involved in performing calculations that handle Ti:sapphire laser light at its fundamental wavelength (~780 nm) in comparison to those encountered for 390 nm light. We remark upon the very considerable importance of accurate and reliable calculations at 780 nm and present results for single-ionization of helium at this wavelength.
PACS: 31.15.Ar – Ab initio calculations / 31.15.Fx – Finite-difference schemes / 31.70.Hq – Time-dependent phenomena: excitation and relaxation processes, and reaction rates / 32.80.Wr – Other multiphoton processes / 42.50.Hz – Strong-field excitation of optical transitions in quantum systems; multi-photon processes; dynamic Stark shift / 02.60.Lj – Ordinary and partial differential equations; boundary value problems
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003